Remove window.performance.webkit* (PrefixedUserTiming)

Source/core/frame/UseCounter.h

 /*
  * Copyright (C) 2012 Google, Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 109 matching lines @@
         XFrameOptions,
         XFrameOptionsSameOrigin,
         XFrameOptionsSameOriginWithBadAncestorChain,
         DeprecatedFlexboxWebContent,
         DeprecatedFlexboxChrome,
         DeprecatedFlexboxChromeExtension,
         REMOVEDSVGTRefElement,
         UnprefixedPerformanceTimeline,
         PrefixedPerformanceTimeline,
         UnprefixedUserTiming,
-        PrefixedUserTiming,
+        REMOVEDPrefixedUserTiming,
         WindowEvent,
         ContentSecurityPolicyWithBaseElement,
         PrefixedMediaAddKey,
         PrefixedMediaGenerateKeyRequest,
         REMOVEDWebAudioLooping,
         DocumentClear,
         PrefixedTransitionMediaFeature,
         SVGFontElement,
         XMLDocument,
         XSLProcessingInstruction,
@@ skipping 194 matching lines @@
 
     void updateMeasurements();
 
     OwnPtr<BitVector> m_countBits;
     BitVector m_CSSFeatureBits;
 };
 
 } // namespace WebCore
 
 #endif // UseCounter_h